diff -Nru doxygen-1.8.11/debian/changelog doxygen-1.8.11/debian/changelog
--- doxygen-1.8.11/debian/changelog	2019-05-30 08:55:06.000000000 -0700
+++ doxygen-1.8.11/debian/changelog	2019-06-24 12:22:46.000000000 -0700
@@ -1,3 +1,15 @@
+doxygen (1.8.11-1ubuntu0.2) xenial; urgency=medium
+
+  * Backport fix bug:regression, unescaped precent, pound, dollar sign in
+    doxygen latex output to a FTBFS for cimg ( LP: #1833627)
+  * upstream source:
+    - https://github.com/doxygen/doxygen/commit/d59ed22f114398d74d5c3fd1445a7901d26ff93a
+    - https://github.com/doxygen/doxygen/commit/d4ab02c2da7df472bebbf2724419ba00f2de229c
+    - https://github.com/doxygen/doxygen/commit/537a1c67f316c5a9d2d4542e94a4ace439a78b3a
+     
+
+ -- Daniel Wang <daniel.wang@canonical.com>  Thu, 20 Jun 2019 15:31:01 -0700
+
 doxygen (1.8.11-1ubuntu0.1) xenial-security; urgency=medium
 
   * SECURITY UPDATE: Cross-site scripting/iframe injection
diff -Nru doxygen-1.8.11/debian/patches/fix-regression-unescaped-sign.patch doxygen-1.8.11/debian/patches/fix-regression-unescaped-sign.patch
--- doxygen-1.8.11/debian/patches/fix-regression-unescaped-sign.patch	1969-12-31 16:00:00.000000000 -0800
+++ doxygen-1.8.11/debian/patches/fix-regression-unescaped-sign.patch	2019-06-24 10:54:36.000000000 -0700
@@ -0,0 +1,43 @@
+Backport of: https://github.com/doxygen/doxygen/commit/537a1c67f316c5a9d2d4542e94a4ace439a78b3a
+From: albert-github <albert.tests@gmail.com>
+Date: Sat, 5 Mar 2016 20:35:16 +0100
+Date: Sat, 5 Mar 2016 19:42:45 +0100
+Subject: [PATCH] Bug 763104 - hyperref link label drop underscores
+
+Backport of: https://github.com/doxygen/doxygen/commit/d59ed22f114398d74d5c3fd1445a7901d26ff93a
+From: albert-github <albert.tests@gmail.com>
+Date: Sun, 28 May 2017 13:14:50 +0200
+Subject: [PATCH] Bug 783134 - LaTeX output for \tparam block fails to compile
+ when it contains a \code block
+
+Backport of: https://github.com/doxygen/doxygen/commit/d59ed22f114398d74d5c3fd1445a7901d26ff93a (partially)
+From: albert-github <albert.tests@gmail.com>
+Date: Sun, 28 May 2017 13:14:50 +0200
+Subject: [PATCH] Bug 783134 - LaTeX output for \tparam block fails to compile
+ when it contains a \code block
+
+Index: doxygen-1.8.11/src/util.cpp
+===================================================================
+--- doxygen-1.8.11.orig/src/util.cpp
++++ doxygen-1.8.11/src/util.cpp
+@@ -6550,6 +6550,10 @@ void filterLatexString(FTextStream &t,co
+         case '{':  t << "\\{"; break;
+         case '}':  t << "\\}"; break;
+         case '_':  t << "\\_"; break;
++        case '&':  t << "\\&"; break;
++        case '%':  t << "\\%"; break;
++        case '#':  t << "\\#"; break;
++        case '$':  t << "\\$"; break;
+         case ' ':  if (keepSpaces) t << "~"; else t << ' ';
+                    break;
+         default:
+@@ -6730,6 +6734,9 @@ QCString latexEscapePDFString(const char
+       case '\\': t << "\\textbackslash{}"; break;
+       case '{':  t << "\\{"; break;
+       case '}':  t << "\\}"; break;
++      case '_':  t << "\\_"; break;
++      case '%':  t << "\\%"; break;
++      case '&':  t << "\\&"; break;
+       default:
+         t << c;
+         break;
diff -Nru doxygen-1.8.11/debian/patches/series doxygen-1.8.11/debian/patches/series
--- doxygen-1.8.11/debian/patches/series	2019-05-30 08:52:55.000000000 -0700
+++ doxygen-1.8.11/debian/patches/series	2019-06-20 14:56:41.000000000 -0700
@@ -10,3 +10,4 @@
 issue759241.diff
 pyversion.diff
 CVE-2016-10245.patch
+fix-regression-unescaped-sign.patch